China Factory Direct
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| CAS number | 1118-90-7 |
| Product name | L-2-Aminoadipic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for synthesizing antibiotics (e.g., cephalosporins) and peptide-based drugs | Used as a chiral building block in solid-phase or solution-phase peptide synthesis; employed in acylation and condensation reactions to construct β-lactam ring structures |
| Biochemical Research | Non-natural amino acid for protein engineering and enzymology studies | Introduced into proteins via site-directed mutagenesis or chemical modification to investigate the impact of amino acid side chains on protein structure and function |
| Chemical Synthesis | Chiral ligand or organic synthesis intermediate | Applied in asymmetric catalytic reactions; utilized in complex molecule construction following esterification or protecting-group strategies |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies L-2-aminoadipic acid content by titration with standardized NaOH using phenolphthalein or potentiometric endpoint detection. |
| Water Content | Karl Fischer Titration | Measures trace water via iodine-sulfur dioxide reaction in a methanol-based solvent system. |
| Specific Optical Rotation | Polarimetry | Determines enantiomeric purity by measuring the rotation of plane-polarized light at 20 degrees C using sodium D-line. |
| Heavy Metals | ICP-OES | Quantifies Pb, Cd, Hg, As, and other regulated metals after acid digestion and plasma excitation. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic impurities by ignition at 700-800 degrees C followed by weight determination. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column and conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 under controlled pH and temperature, then weighs the dried precipitate. |
| Related Substances | HPLC with UV Detection | Separates and quantifies structurally similar impurities (e.g., decarboxylated or oxidized analogs) using reversed-phase C18 column and UV at 210 nm. |
| pH (1% aqueous solution) | Potentiometric pH Measurement | Measures hydrogen ion activity in a defined aqueous solution using calibrated glass electrode. |
| Loss on Drying | Thermogravimetric Analysis | Determines volatile content by weight loss after drying at 105 degrees C for 2 hours under vacuum or air. |
| Iron Content | AAS (Flame Atomic Absorption Spectroscopy) | Quantifies Fe after sample digestion using acetylene-air flame and characteristic 248.3 nm absorption line. |
| Microbial Limits | Membrane Filtration | Detects aerobic microorganisms by filtration, membrane transfer to agar media, and colony enumeration after incubation. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 210~215°C |
| Optical Rotation | +23.0 to +26.0° (c=1, H2O) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.